Plasmon enhanced light trapping in thin film GaAs solar cells by Al nanoparticle array

Singh, Gurjit; Verma, S. S.

doi:10.1016/j.physleta.2019.02.008

Cited by 52 publications

(18 citation statements)

References 23 publications

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“…Therefore, the optical path length can be efficiently increased to trap incident light since it is concentrated into the semiconductor and travels multiple times through it. Using this strategy, by incorporating the solar cell with an Al NP array, the absorption rate and current density of thin-film GaAs solar cells were significantly enhanced up to 0.7983 and 25.77 mA/cm 2 , respectively [19]. Other strategies using nanostructured plasmonic thin films and metallic grating structures were proposed to effectively enhance light coupling, trapping, and absorption in ultrathin solar cells [20][21][22][23][24].…”

Section: Light Trappingmentioning

confidence: 99%

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

et al. 2020

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Issues related to global energy and environment as well as health crisis are currently some of the greatest challenges faced by humanity, which compel us to develop new pollution-free and sustainable energy sources, as well as next-generation biodiagnostic solutions. Optical functional nanostructures that manipulate and confine light on a nanometer scale have recently emerged as leading candidates for a wide range of applications in solar energy conversion and biosensing. In this review, recent research progress in the development of photonic and plasmonic nanostructures for various applications in solar energy conversion, such as photovoltaics, photothermal conversion, and photocatalysis, is highlighted. Furthermore, the combination of photonic and plasmonic nanostructures for developing high-efficiency solar energy conversion systems is explored and discussed. We also discuss recent applications of photonic–plasmonic-based biosensors in the rapid management of infectious diseases at point-of-care as well as terahertz biosensing and imaging for improving global health. Finally, we discuss the current challenges and future prospects associated with the existing solar energy conversion and biosensing systems.

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Section: Light Trappingmentioning

confidence: 99%

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

et al. 2020

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“…Using the electric field and the imaginary part of the dielectric function, the absorption spectrum A ( λ ) can be calculated:

A ((), λ) = \frac{ω ε_{0}}{2} \frac{Im ((), ε ((), ω)) {|E (ω)|}^{2}}{P_{in}},

where ω is the angular frequency, ε 0 is the dielectric constant, Im( ε ( ω )) is the imaginary part of the dielectric function, P in is the incident light power, and ħ is the Planck constant. The absorbed power and optical generation per unit volume can be calculated according to the following equation:

P_{abs} = - 0.5 ω {|E (ω)|}^{2} Im ((), ε ((), ω)),

G = \frac{P_{italicabs}}{normalℏ ω} .

…”

Section: Structure and Simulation Methodsmentioning

confidence: 99%

The effective light‐harvesting performance of graded compositional Al _x Ga _1−x N nano‐cone arrays photocathode for ultraviolet detector—A numerical investigation and simulation

Liu

Zhangyang

et al. 2020

Int J Energy Res

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A graded compositional Al x Ga 1−x N nanomaterial with a built-in electric field has been proposed to improve the quantum efficiency of the negative electronic affinity photocathode. When the graded compositional Al x Ga 1−x N nano-cone array is applied to the ultraviolet (UV) detector, it is necessary to improve the effective light absorption, which is high absorption in the UV short-wavelength and high sensitivity in the threshold wavelength. Therefore, the light absorption of nano-cone arrays with different feature sizes and geometrical properties is accurately calculated innovatively based on the finite-difference time-domain method. Studies show that a non-close-packed six-sided pyramid structure with a fill factor of 42.44% and a height of 1000 nm has an absorption spectrum that better satisfies the response characteristics of the UV detector. Surface reflection depends to a large extent on the transformation of the angle of incidence. The optical absorption properties of the graded compositional Al x Ga 1−x N nano-cone array provide flexibility and reference value for the improvement of the absorption coefficient and other parameters in the actual quantum efficiency experiment of the UV photocathode with built-in electric field, which can realize the highest sensitivity of various designed UV detector optical system.

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“…Generally, absorption of light within the photoactive layer can be boosted by increasing the optical path length within the cell and reflection reduction on the front surface. A considerable amount of theoretical and experimental work has proposed a variety of light-trapping techniques, such as refractive index matching [ 4 ], surface texturing [ 5 ], diffraction gratings [ 6 ], antireflection coatings [ 7 ], photonic crystals [ 8 ], nanostructures [ 9 ], and metallic nanoparticles [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Besides, the active layer thickness is almost not affected by metallic nanoparticles which reduce overall cost. Metallic nanoparticles are introduced with various shapes [ 18 ], in different ways [ 19 ], and at several relative positions [ 10 ]. The efficient conversion of photocurrent has been reported by adding induced gold particles incorporated in a TiO 2 matrix [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Plasmon-Enhanced Sunlight Harvesting in Thin-Film Solar Cell by Randomly Distributed Nanoparticle Array

2021

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In this paper, a randomly distributed plasmonic aluminum nanoparticle array is introduced on the top surface of conventional GaAs thin-film solar cells to improve sunlight harvesting. The performance of such photovoltaic structures is determined through monitoring the modification of its absorbance due to changing its structural parameters. A single Al nanoparticle array is integrated over the antireflective layer to boost the absorption spectra in both visible and near-infra-red regimes. Furthermore, the planar density of the plasmonic layer is presented as a crucial parameter in studying and investigating the performance of the solar cells. Then, we have introduced a double Al nanoparticle array as an imperfection from the regular uniform single array as it has different size particles and various spatial distributions. The comparison of performances was established using the enhancement percentage in the absorption. The findings illustrate that the structural parameters of the reported solar cell, especially the planar density of the plasmonic layer, have significant impacts on tuning solar energy harvesting. Additionally, increasing the plasmonic planar density enhances the absorption in the visible region. On the other hand, the absorption in the near-infrared regime becomes worse, and vice versa.

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Plasmon enhanced light trapping in thin film GaAs solar cells by Al nanoparticle array

Cited by 52 publications

References 23 publications

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

The effective light‐harvesting performance of graded compositional Al _x Ga _1−x N nano‐cone arrays photocathode for ultraviolet detector—A numerical investigation and simulation

Plasmon-Enhanced Sunlight Harvesting in Thin-Film Solar Cell by Randomly Distributed Nanoparticle Array

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Plasmon enhanced light trapping in thin film GaAs solar cells by Al nanoparticle array

Cited by 52 publications

References 23 publications

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

The effective light‐harvesting performance of graded compositional Al x Ga 1−x N nano‐cone arrays photocathode for ultraviolet detector—A numerical investigation and simulation

Plasmon-Enhanced Sunlight Harvesting in Thin-Film Solar Cell by Randomly Distributed Nanoparticle Array

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The effective light‐harvesting performance of graded compositional Al _x Ga _1−x N nano‐cone arrays photocathode for ultraviolet detector—A numerical investigation and simulation